CN219782954U - A negative pressure drainage dressing for absorbing wound permeate - Google Patents

Abstract

The utility model relates to the field of medical technology, and in particular to a negative pressure drainage dressing for absorbing wound permeate, which includes a sealing film, breathable cotton, a water-absorbent layer, an isolation layer and a protective layer stacked from top to bottom. At least one fin-shaped belt is formed on the upper part of the sealing film. A hollow space is formed between the fin-shaped belt and the breathable cotton. The upper part of the breathable cotton is provided with breathable stripes connected with the fin-shaped belt. The fin-shaped belt One end extends to one side of the breathable cotton and is connected to a joint. This negative pressure drainage patch, which is used to absorb wound permeate, can enhance the air suction capacity of different parts of the breathable cotton through the arrangement of fin strips and breathable stripes, so that Breathable cotton tends to absorb gas or liquid evenly from bottom to top in the water-absorbent layer, making it less likely to cause fluid accumulation. Under the action of negative pressure, the water-absorbent layer can quickly conduct and store wound permeate, remove secretions, and promote wound healing. Ingenious design, simple production and low cost.

Description

A negative pressure drainage dressing used to absorb wound permeate

Technical field

The utility model relates to the field of medical technology, in particular to a negative pressure drainage dressing used to absorb wound permeate.

Background technique

Depending on the nature of the surgical patient's injury and the condition of the wound healing, different wound treatment methods need to be adopted. If the wound is accompanied by more necrotic tissue and purulent exudate, the patient's wound is seriously infected. Symptoms require debridement of local necrotic tissue and removal of purulent secretions. After the operation, wound infiltration also needs to be removed in time to prevent accumulation of infiltration;

Chinese Patent Announcement No. CN201910836942 discloses a medical device for managing exudate from damaged tissue. It uses a breathable layer with different air permeability in each part to improve the effect of negative pressure suction. However, in this method, the different air permeability of each part is difficult to achieve, resulting in breathability. The manufacturing process of the layer is complicated and costly, and the negative pressure hole is located in the middle area, which results in an abrupt structure at the connection between the negative pressure tube and the device. The patient has a strong foreign body sensation when lying down. There is an urgent need for a negative pressure drainage applicator with a simple structure. The material absorbs wound exudate.

Utility model content

The purpose of this utility model is to provide a negative pressure drainage dressing for absorbing wound permeate, so as to solve the problem that the different air permeability of each part of the breathable layer in traditional medical devices for absorbing tissue exudate is difficult to achieve, resulting in a complicated manufacturing process of the breathable layer. , the cost is high, and the negative pressure hole is located in the middle area, which leads to an abrupt structure at the connection between the negative pressure tube and the device, and technical problems such as a strong foreign body sensation when the patient is lying down.

The above technical objectives of the present invention are achieved through the following technical solutions:

A negative pressure drainage dressing for absorbing wound permeate, including a sealing film, breathable cotton, a water-absorbent layer, an isolation layer and a protective layer stacked from top to bottom, with at least one fin formed on the upper part of the sealing film A hollow space is formed between the fin-shaped belt and the breathable cotton, and the upper part of the breathable cotton is provided with breathable stripes connected with the fin-shaped belt.

Beneficial effects: This negative pressure drainage dressing, which is used to absorb wound permeate, can enhance the air suction capacity of different parts of the breathable cotton through the setting of fin strips and breathable stripes, making the breathable cotton tend to make the air even from bottom to top. Absorbing gas or liquid in the water-absorbent layer will not easily cause fluid accumulation. Under the action of negative pressure, the water-absorbent layer can quickly conduct and store wound permeate, remove secretions, and promote wound healing. It is ingeniously designed, simple to make, low cost, and easy to use. Promotion: The joint and the breathable cotton are connected in the same plane, the connection is not protruding, the foreign body sensation is not obvious, and the patient experience is good.

Further, one end of the fin-shaped belt extends to one side of the breathable cotton and is connected to a joint. A negative pressure tube is inserted into the joint, and the joint and the breathable cotton are located in the same plane.

Further, the edges of the sealing film and the isolation layer are bonded and fixed, so that the breathable cotton and water-absorbent layer are centrally sealed between the sealing film and the isolation layer.

Furthermore, the middle part of the isolation layer is densely covered with water-absorbing holes, and the water-absorbing holes are in a circular, strip-shaped or arc-shaped structure.

Furthermore, medical adhesive is bonded between the edge of the isolation layer and the edge of the protective layer, and the medical adhesive is distributed in a matrix.

Further, the water-absorbent layer is any one of fluff pulp material, gel fiber material or microalgae gel mixed with polymer water-absorbent material.

Description of the drawings

Figure 1 is a side cross-sectional view of a negative pressure drainage dressing used to absorb wound permeate according to the present invention;

Figure 2 is a structural top view of a negative pressure drainage dressing used to absorb wound permeate according to the present invention;

Figure 3 is a top cross-sectional view of a negative pressure drainage dressing used to absorb wound permeate according to the present invention.

Reference signs: 1. Sealing film; 11. Fin belt; 12. Joint; 13. Negative pressure tube; 2. Breathable cotton; 211. Warp groove; 212. Weft groove; 213. Arc groove; 21. Breathable stripes ; 3. Water-absorbing layer; 4. Isolating layer; 41. Water-absorbing holes; 5. Protective layer.

Detailed ways

The following descriptions are only preferred embodiments of the present utility model, and the protection scope is not limited to this embodiment. All technical solutions that fall under the idea of the present utility model should fall within the protection scope of the present utility model. At the same time, it should be pointed out that for those of ordinary skill in the art, several improvements and modifications may be made without departing from the principles of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Embodiment 1, as shown in Figures 1 to 3, a negative pressure drainage dressing for absorbing wound permeate, including a sealing film 1, a breathable cotton 2, a water-absorbent layer 3, and an isolation layer laminated from top to bottom. Layer 4 and protective layer 5, the sealing film 1 can be made of polyurethane film, the breathable cotton 2 can be made of sponge, the isolation layer 4 can be made of silicone gel film, and the protective layer 5 can be a release film. At least one fin-shaped band 11 is formed on the upper part of the film 1. A hollow space is formed between the fin-shaped band 11 and the breathable cotton 2. The fin-shaped band 11 is a fold that seals the film 1, and the upper part of the breathable cotton 2 is provided with a The breathable stripes 21 are connected with the fin strips 11. The breathable stripes 21 at least include warp grooves 211 and weft grooves 212. The warp grooves 211 and the weft grooves 212 are interlaced with each other to form a grid structure, and the warp grooves 211 or the weft grooves 212 and The above-mentioned hollow spaces are connected. Optionally, the warp grooves 211 and the weft grooves 212 are of different thicknesses. One end of the fin-shaped belt 11 extends to the side of the breathable cotton 2 and is connected to a joint 12. The joint 12 is interference-fitted. There is a negative pressure tube 13. The joint 12 and the breathable cotton 2 are located on the same plane. The outer wall of one end of the negative pressure tube 13 located in the joint 12 is provided with multiple through holes, which can increase the suction volume. The other end of the negative pressure tube 13 Connected to the negative pressure generating equipment, the edges of the sealing film 1 and the isolation layer 4 are bonded and fixed, so that the breathable cotton 2 and the water-absorbent layer 3 are centrally sealed between the sealing film 1 and the isolation layer 4 to protect the breathable cotton 2 The water-absorbing layer 3 does not fail. The middle part of the isolation layer 4 is densely covered with water-absorbing holes 41. The water-absorbing holes 41 are in a circular, strip-shaped or arc-shaped structure. The water-absorbing holes 41 can allow wound permeate to pass through. The isolation layer 4 Medical viscose is bonded between the edge and the edge of the protective layer 5, and the medical viscose is distributed in a matrix. The gaps between the medical viscose provide breathing space for skin cells, and the comfort is good. The water-absorbent layer 3 is doped with Any one of fluff pulp material, gel fiber material or microalgae gel containing polymer water-absorbing material ensures the water-absorbing performance of the water-absorbing layer 3.

When using this embodiment, the protective layer 5 is torn off, and the isolation layer 4 is exposed and applied to the wound. After pressing evenly along the edge of the application, the plug located at the joint 12 is removed, and the negative pressure tube 13 connected with the negative pressure generating device is connected to the wound. The connector 12 is plugged in, and the negative pressure generating device is started, which can form a negative pressure in the hollow space. Since the air permeability of the breathable cotton 2 is low, the mesh-shaped breathable stripes 21 can transmit the air at the far end to the hollow space, and can This causes the breathable cotton 2 to tend to absorb the gas or liquid in the water-absorbent layer 3 evenly from bottom to top.

Embodiment 2, as shown in FIG. 1 , is different from Embodiment 1 in that the breathable stripes 21 include a plurality of arcuate grooves 213 arranged in the same direction. The arcuate grooves 213 are arranged symmetrically with respect to the fin strip 11 and adjacent arcs 213 . The shaped grooves 213 intersect in the hollow space;

When using this embodiment, the protective layer 5 is torn off, and the isolation layer 4 is exposed and applied to the wound. After pressing evenly along the edge of the application, the plug located at the joint 12 is removed, and the negative pressure tube 13 connected with the negative pressure generating device is connected to the wound. The joint 12 is plugged in and the negative pressure generating device is started, which can form a negative pressure in the hollow space. Since the air permeability of the breathable cotton 2 is low, the tree-shaped breathable stripes 21 can transmit the air at the far end to converge into the hollow space, and the arc The angle between the shaped groove 213 and the hollow space is small, and the gas transmission resistance is small, which can promote the breathable cotton 2 to evenly absorb the gas or liquid in the water-absorbing layer 3 from bottom to top, making it difficult to cause liquid accumulation.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent substitutions on some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model, All should be included in the protection scope of this utility model.

Claims (5)

1. A negative pressure drainage application material for absorbing wound permeate, characterized by, include sealing membrane (1), ventilative cotton (2), layer (3) that absorb water, isolation layer (4) and protective layer (5) that range upon range of setting from top to bottom, sealing membrane (1) upper portion is formed with at least one fin area (11), form the cavity space between fin area (11) and ventilative cotton (2), just ventilative cotton (2) upper portion be provided with ventilative stripe (21) that are linked together with fin area (11).

2. A negative pressure drainage dressing for absorbing wound permeate according to claim 1, wherein: one end of the fin-shaped belt (11) extends to one side of the breathable cotton (2) and is connected with a connector (12), a negative pressure pipe (13) is inserted in the connector (12) in an interference mode, and the connector (12) and the breathable cotton (2) are located in the same plane.

3. A negative pressure drainage dressing for absorbing wound permeate according to claim 1, wherein: the sealing film (1) is adhered and fixed with the edge of the isolation layer (4), so that the breathable cotton (2) and the water absorption layer (3) are sealed between the sealing film (1) and the isolation layer (4) in the middle.

4. A negative pressure drainage dressing for absorbing wound permeate according to claim 1, wherein: the middle part of the isolation layer (4) is densely provided with water absorbing holes (41), and the water absorbing holes (41) are in a round, strip-shaped or arc-shaped structure.

5. A negative pressure drainage dressing for absorbing wound permeate according to claim 1, wherein: medical adhesive is adhered between the edges of the isolation layer (4) and the edges of the protection layer (5), and the medical adhesive is distributed in a matrix shape.